CN108297860B - Accelerator pedal opening degree analysis control method, device and system - Google Patents
Accelerator pedal opening degree analysis control method, device and system Download PDFInfo
- Publication number
- CN108297860B CN108297860B CN201810258268.3A CN201810258268A CN108297860B CN 108297860 B CN108297860 B CN 108297860B CN 201810258268 A CN201810258268 A CN 201810258268A CN 108297860 B CN108297860 B CN 108297860B
- Authority
- CN
- China
- Prior art keywords
- accelerator pedal
- vehicle speed
- opening
- initial
- opening degree
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
Abstract
The invention discloses an accelerator pedal opening analyzing control method, device and system, which comprises the steps of detecting the states of an accelerator pedal, a brake pedal and a gear of an automobile and obtaining the initial accelerator pedal opening; judging whether an accelerator pedal and a brake pedal are both stepped on and a gear is in a driving gear, if so, acquiring the current vehicle speed; if the current vehicle speed is higher than a preset vehicle speed threshold value and the initial accelerator pedal opening is larger than a first preset value, controlling the initial accelerator pedal opening to be reduced to the first preset value according to a preset gradient change rate; if the current vehicle speed is lower than a preset vehicle speed threshold value and the initial accelerator pedal opening is larger than a second preset value, adjusting the accelerator pedal opening by taking the zero vehicle speed as a control target until the vehicle speed is reduced to zero; otherwise, the initial accelerator pedal opening degree is kept. According to the invention, when the brake pedal and the accelerator pedal are simultaneously stepped on, different strategies are adopted to perform braking control according to different states of the vehicle, so that the safety is high, and the user experience is good.
Description
Technical Field
The invention relates to the technical field of vehicle speed control, in particular to an accelerator pedal opening analyzing control method, device and system.
Background
In the process of automobile advancing, after a driver steps on an accelerator pedal, acceleration response can be carried out, and after a brake pedal is stepped on, brake response can be carried out, but when the driver meets an emergency situation, due to overstrain, misoperation of simultaneously stepping on the accelerator pedal and the brake pedal can occur, at the moment, if response is carried out according to normal accelerator pedal opening, the brake distance is increased, and the probability of dangerous accidents is increased.
However, when the vehicle starts on a steep slope, a driver skilled in operation usually depresses the accelerator pedal at the same time when the brake pedal is not completely released to prevent the vehicle from rolling back, and in this case, the vehicle can be started on a steep slope at an increased speed and with a high success rate in response to a normal accelerator pedal opening degree
For the two application scenes, the two usage scenes are difficult to distinguish under the condition that other vehicle diagnosis systems are not additionally arranged, at the moment, if the response is completely carried out according to the normal opening degree of the accelerator pedal, the probability of dangerous accidents is inevitably increased, and if the response is not carried out at all, the operation and control requirements of a driver during steep slope starting cannot be met, and the vehicle is easy to slip backwards.
Therefore, how to provide an analysis control method, device and system for the opening degree of an accelerator pedal capable of meeting the above requirements is a problem to be solved by those skilled in the art at present.
Disclosure of Invention
The invention aims to provide an accelerator pedal opening analyzing and controlling method, device and system, which can adopt different strategies to perform braking control according to different states of a vehicle when a brake pedal and an accelerator pedal are simultaneously stepped on, and have high safety and good user experience.
In order to solve the technical problem, the invention provides an accelerator pedal opening analyzing control method, which comprises the following steps:
step s 1: detecting states of an accelerator pedal, a brake pedal and a gear of an automobile to obtain an initial accelerator pedal opening degree; if the accelerator pedal and the brake pedal are both stepped on and the gear is in a driving gear, entering step s 2; otherwise, go to step s 7;
step s 2: acquiring a current vehicle speed, judging whether the current vehicle speed is higher than a preset vehicle speed threshold value, if so, entering a step s3, otherwise, entering a step s 5;
step s 3: judging whether the initial accelerator pedal opening is larger than a first preset value or not, if so, entering a step s4, otherwise, entering a step s 7;
step s 4: controlling the initial opening degree of the accelerator pedal to be reduced to the first preset value according to a preset gradient change rate;
step s 5: judging whether the initial accelerator pedal opening is larger than a second preset value or not, if so, entering a step s6, otherwise, entering a step s 7;
step s 6: adjusting the opening of an accelerator pedal by taking the zero vehicle speed as a control target until the vehicle speed is reduced to zero;
step s 7: and maintaining the initial accelerator pedal opening.
Preferably, the process of acquiring the initial accelerator pedal opening specifically includes:
collecting two paths of voltage signals of the accelerator pedal, and analyzing according to the voltage signals to obtain the initial accelerator pedal opening.
Preferably, the process of detecting the state of the brake pedal is specifically:
and acquiring two high-low switch hard-line signals of the brake pedal, and analyzing according to the switch hard-line signals to obtain the actual state of the brake pedal.
Preferably, the process of adjusting the opening degree of the accelerator pedal by using the zero vehicle speed as the control target specifically comprises:
calculating the deviation between the target vehicle speed and the current vehicle speed by taking a zero vehicle speed as the target vehicle speed;
and adjusting the opening of the accelerator pedal according to the deviation and a preset rule.
In order to solve the above technical problem, the present invention further provides an accelerator pedal opening analyzing control device, including:
the system comprises an initial state detection module, a control module and a control module, wherein the initial state detection module is used for detecting the states of an accelerator pedal, a brake pedal and a gear of an automobile and acquiring the initial opening degree of the accelerator pedal; if the accelerator pedal and the brake pedal are both stepped on and the gear is in a driving gear, triggering a vehicle speed judgment module; otherwise, keeping the initial accelerator pedal opening;
the vehicle speed judging module is used for acquiring the current vehicle speed, judging whether the current vehicle speed is higher than a preset vehicle speed threshold value, if so, triggering the first opening judging module, and otherwise, triggering the second opening judging module;
the first opening degree judging module is used for judging whether the initial opening degree of the accelerator pedal is larger than a first preset value or not, if so, a first adjusting module is triggered, and otherwise, the initial opening degree of the accelerator pedal is kept;
the first adjusting module is used for controlling the initial opening degree of the accelerator pedal to be reduced to the first preset value according to a preset gradient change rate;
the second opening degree judging module is used for judging whether the initial accelerator pedal opening degree is larger than a second preset value or not, if so, a second adjusting module is triggered, and otherwise, the initial accelerator pedal opening degree is kept;
and the second adjusting module is used for adjusting the opening of the accelerator pedal by taking the zero vehicle speed as a control target until the vehicle speed is reduced to zero.
Preferably, the second adjusting module specifically includes:
the deviation calculation unit is used for calculating the deviation between the target vehicle speed and the current vehicle speed by taking the zero vehicle speed as the target vehicle speed;
and the adjusting unit is used for adjusting the opening of the accelerator pedal according to the deviation and a preset rule.
In order to solve the technical problem, the invention also provides an accelerator pedal opening analyzing control system, which comprises a vehicle speed calculating device, a vehicle control unit, a brake pedal and an accelerator pedal, wherein the vehicle control unit comprises the accelerator pedal opening analyzing control device;
the vehicle speed calculating device is used for collecting and calculating vehicle speed signals and sending the calculated vehicle speed information to the vehicle control unit.
Preferably, the vehicle control unit is connected with the brake pedal and the accelerator pedal through hard wires respectively.
Preferably, the vehicle speed calculating device is connected with the vehicle control unit through a CAN bus.
The invention provides an accelerator pedal opening analyzing control method, device and system, which comprises the steps of firstly detecting the states of an accelerator pedal and a brake pedal, and if both the accelerator pedal and the brake pedal are stepped, judging whether the current vehicle speed is higher than a preset vehicle speed threshold value; it can be understood that when the vehicle speed is higher, the braking effect generally needs to be enhanced to ensure safety, therefore, after the vehicle speed is higher and the opening degree of the accelerator pedal reaches a first preset value, the opening degree of the accelerator pedal is controlled to be reduced, the acceleration effect is reduced, and the braking effect is indirectly enhanced; when the vehicle speed is low, the vehicle is probably in an uphill state, and in order to prevent backward slip, the opening of the accelerator pedal is adjusted by taking the zero vehicle speed as a control target until the vehicle speed is reduced to zero. Therefore, when the accelerator pedal and the brake pedal are simultaneously stepped on, the method can distinguish the situation as much as possible, which is caused by misoperation under the condition of high-speed emergency braking or active operation during abrupt slope starting, and adopts different control strategies, so that the safety risk of the driver during misoperation is reduced, the control demand of the driver during abrupt slope starting can be met, the safety is high, and the user experience is good.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of a process of an accelerator pedal opening analyzing control method provided by the invention;
FIG. 2 is a schematic structural diagram of an accelerator pedal opening analyzing and controlling device provided by the invention;
fig. 3 is a schematic structural diagram of an accelerator pedal opening analyzing control system provided by the invention.
Detailed Description
The core of the invention is to provide an accelerator pedal opening analysis control method, device and system, which can adopt different strategies to perform braking control according to different states of a vehicle when a brake pedal and an accelerator pedal are simultaneously stepped on, and have high safety and good user experience.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an accelerator pedal opening analysis control method, and as shown in fig. 1, fig. 1 is a flow chart of a process of the accelerator pedal opening analysis control method provided by the invention; the method comprises the following steps:
step s 1: detecting states of an accelerator pedal, a brake pedal and a gear of an automobile to obtain an initial accelerator pedal opening degree; if the accelerator pedal and the brake pedal are both pressed down and the gear is in a driving gear (forward gear or reverse gear), entering step s 2; otherwise, go to step s 7;
it is understood that the state of the accelerator pedal can be represented by the accelerator pedal opening, and the accelerator pedal opening represents the degree of pressing the accelerator pedal, and can also be understood as the throttle opening (which is controlled by the accelerator pedal), and the engine controls the fuel injection amount according to the throttle opening, so that the higher the degree of pressing the accelerator pedal (i.e. the heavier the accelerator pedal is pressed), the larger the accelerator pedal opening is, the more the fuel injection amount of the engine is, at the moment, the greater the acceleration of the automobile is, i.e. the faster the acceleration is, the more the acceleration is, and vice versa.
It can be understood that, when the accelerator pedal and the brake pedal are simultaneously pressed, generally, the misoperation of the driver is performed in an emergency, or when the vehicle is on an uphill slope, the subsequent analysis is only required to be performed when both the two pedals are pressed to determine the current vehicle situation, and whether the opening degree of the accelerator pedal is ensured or reduced is selected. In addition, the purpose of entering step s2 when the limited gear is in the driving gear is that the vehicle is in the normal running process when the vehicle is in the driving gear, and if the vehicle is not in the driving gear, it indicates that the vehicle is not started at this time and is in a static state.
Therefore, the routine proceeds to step s2 only when the above three conditions are satisfied, and proceeds to step s7 when any of the accelerator pedal is not depressed, the brake pedal is not depressed, and the shift position is not in the drive range.
Step s 2: acquiring a current vehicle speed, judging whether the current vehicle speed is higher than a preset vehicle speed threshold (for example, 5Km/h, although the invention does not limit the numerical value of the preset vehicle speed threshold), if so, entering step s3, otherwise, entering step s 5;
it can be understood that, in both cases of the present invention, if the misoperation occurs in an emergency, the vehicle speed is generally high, and emergency braking is required to ensure driving safety, and if the vehicle is prevented from rolling backwards on an uphill slope, the vehicle speed is generally not high; therefore, the two conditions can be simply distinguished by judging the magnitude of the vehicle speed. If the current vehicle speed is higher than the preset vehicle speed threshold value, indicating that the misoperation occurs in an emergency situation at the moment and emergency braking is needed; and if the current vehicle speed is not higher than the preset vehicle speed threshold value, indicating that the current vehicle speed is normal operation of the driver.
Step s 3: judging whether the initial accelerator pedal opening is larger than a first preset value (for example, 3%, of course, the invention does not limit the numerical value of the first preset value), if so, entering step s4, otherwise, entering step s 7;
it can be understood that, since the accelerator pedal is assumed to be depressed if the accelerator pedal opening is greater than zero, but the degree of depression of the accelerator pedal is uncertain after the accelerator pedal is depressed, there is a possibility that the degree of depression of the accelerator pedal is low (i.e., the accelerator pedal is depressed shallowly) and the accelerator pedal opening is small in the misoperation occurring at this time. In this case, although the vehicle needs emergency braking, the acceleration action of the vehicle after the accelerator pedal is depressed is very small and hardly affects the braking of the vehicle, and therefore, the accelerator pedal opening degree does not need to be particularly reduced and the vehicle can be maintained. However, when the opening degree of the accelerator pedal is greater than the first preset value, it indicates that the accelerator pedal is pressed to a greater extent (i.e., deeply), and the accelerator pedal is pressed to generate a more obvious acceleration effect, so that the acceleration effect of the extent can affect the braking effect brought by the brake pedal, and the braking speed of the vehicle is slowed, so that a traffic accident may occur due to untimely braking of the vehicle, and the safety is low.
Step s 4: controlling the initial opening degree of the accelerator pedal to be reduced to a first preset value according to a preset gradient change rate (such as 500%/S, of course, the invention does not limit the value of the preset gradient change rate);
it is understood that the control of the accelerator pedal opening is actually the position control of the accelerator pedal, and the operation of controlling the accelerator pedal opening to decrease is the return of controlling the accelerator pedal from being depressed to being not depressed. Because the accelerator pedal is a mechanical part, the position of the accelerator pedal needs to be moved for a certain time, if the initial opening degree of the accelerator pedal is controlled to be directly changed from a current value to a first preset value, the accelerator pedal may not react in time, and reacts in time, and a certain damage is brought to the accelerator pedal by too violent action, so that the service life of the accelerator pedal is influenced. Therefore, the initial accelerator pedal opening degree needs to be controlled to be gradually reduced according to the preset gradient change rate, and certainly, the time for controlling the initial accelerator pedal opening degree to be reduced to the first preset value is not too long to ensure the safety of the vehicle due to the fact that the vehicle is in the condition of needing emergency braking.
Step s 5: judging whether the initial accelerator pedal opening is larger than a second preset value (for example, 3%, of course, the invention does not limit the numerical value of the first preset value), if so, entering step s6, otherwise, entering step s 7;
it will be appreciated that the step s5 is entered to indicate that the vehicle is at a low speed, and that the driver is generally actively depressing both the accelerator pedal and the brake pedal to prevent rollback on an uphill slope, but this is not to be excluded because of a driver error which may result in a malfunction after touching the accelerator pedal with his foot.
For the situation that the driver steps on the accelerator pedal actively, the situation that the opening degree of the accelerator pedal is too small generally rarely occurs, and the opening degree of the accelerator pedal can be guaranteed to be larger than a second preset value (certainly, the achievement of the purpose needs a worker to reasonably set a specific numerical value of the second preset value according to actual situations), but due to experience of the driver, even if the driver steps on the accelerator pedal and the brake pedal simultaneously, the purpose that the vehicle does not slide backwards or forwards cannot be guaranteed, and therefore the accelerator pedal needs to be further controlled to enable the vehicle speed to be reduced to 0.
For the above-mentioned misoperation, if the opening degree of the accelerator pedal is not very large (i.e. not greater than the second preset value, at this time, the foot of the driver may touch the accelerator pedal), the normal driving is not affected so much, and therefore, the opening degree of the accelerator pedal does not need to be operated additionally; however, if the accelerator pedal opening is large, the rattling safety is easily affected, and therefore, the vehicle speed needs to be reduced to 0 by closed-loop control.
Step s 6: regulating the opening degree of an accelerator pedal by taking a zero vehicle speed (namely, the vehicle does not slide backwards or forwards) as a control target until the vehicle speed is reduced to zero;
step s 7: the initial accelerator pedal opening is maintained.
In step s1, the process of acquiring the initial accelerator pedal opening specifically includes:
two paths of voltage signals of the accelerator pedal are collected, and the initial opening degree of the accelerator pedal is obtained through analysis according to the voltage signals.
It can be understood that, based on the wiring arrangement of the accelerator pedal, after the accelerator pedal is stepped on, two paths of voltage signals at two ends of the accelerator pedal change, the stepping degree is different, and parameters of the voltage signals are also different, so that the initial accelerator pedal opening can be calculated according to the parameters of the voltage signals. Since the accelerator pedal is considered to be in a depressed state after the accelerator pedal opening is not zero or higher than a certain value, otherwise, the accelerator pedal is in a non-depressed state, the same step is taken for detecting the state of the accelerator pedal of the automobile and acquiring the initial accelerator pedal opening. Because the vehicle is set differently, the opening degree of the accelerator pedal can be acquired according to other types of signals, but the voltage signal according to the invention is more sensitive to change compared with other types of signals, and the voltage signal is used as a basic signal, so that the analysis mode is simpler.
In step s1, the process of detecting the state of the brake pedal specifically includes:
two high-low switch hard-line signals of the brake pedal are collected, and the actual state of the brake pedal is obtained through analysis according to the switch hard-line signals.
It can be understood that two ends of the brake pedal are connected with two hard wires, after the brake pedal is stepped down, the switch positions of signals at two ends of a wire on the brake pedal can be changed, for example, the signal before the brake pedal is stepped down is at a low level, and the signal after the brake pedal is stepped down is at a high level.
In an embodiment, the process of step s6 is specifically:
calculating the deviation between the target vehicle speed and the current vehicle speed by taking the zero vehicle speed as the target vehicle speed;
and adjusting the opening of the accelerator pedal according to the deviation and a preset rule.
The preset rule may be a corresponding relation table between the deviation and the accelerator pedal opening adjustment value, and may be other rules, which are not limited in the present invention.
It can be understood that, in the embodiment, the vehicle speed is controlled by using the closed-loop control, although the object of the present invention can also be achieved by using the open-loop control, the closed-loop control can adjust the opening degree of the accelerator pedal according to the deviation between the target vehicle speed and the current vehicle speed, the speed of controlling the vehicle speed to be reduced to 0 is faster, and the control precision is higher.
The invention provides an accelerator pedal opening analyzing control method, which comprises the steps of firstly detecting the states of an accelerator pedal and a brake pedal, and if both the accelerator pedal and the brake pedal are stepped, judging whether the current vehicle speed is higher than a preset vehicle speed threshold value; it can be understood that when the vehicle speed is higher, the braking effect generally needs to be enhanced to ensure safety, therefore, after the vehicle speed is higher and the opening degree of the accelerator pedal reaches a first preset value, the opening degree of the accelerator pedal is controlled to be reduced, the acceleration effect is reduced, and the braking effect is indirectly enhanced; when the vehicle speed is low, the vehicle is probably in an uphill state, and in order to prevent backward slip, the opening of the accelerator pedal is adjusted by taking the zero vehicle speed as a control target until the vehicle speed is reduced to zero. Therefore, when the accelerator pedal and the brake pedal are simultaneously stepped on, the method can distinguish the situation as much as possible, which is caused by misoperation under the condition of high-speed emergency braking or active operation during abrupt slope starting, and adopts different control strategies, so that the safety risk of the driver during misoperation is reduced, the control demand of the driver during abrupt slope starting can be met, the safety is high, and the user experience is good.
The invention also provides an accelerator pedal opening analysis control device, which is shown in fig. 2, and fig. 2 is a schematic structural diagram of the accelerator pedal opening analysis control device provided by the invention; the device includes:
the initial state detection module 11 is used for detecting states of an accelerator pedal, a brake pedal and a gear of an automobile and acquiring an initial accelerator pedal opening degree; if the accelerator pedal and the brake pedal are both stepped on and the gear is in a driving gear, triggering a vehicle speed judgment module 12; otherwise, keeping the initial opening degree of the accelerator pedal;
the vehicle speed judging module 12 is used for acquiring a current vehicle speed, judging whether the current vehicle speed is higher than a preset vehicle speed threshold value, if so, triggering the first opening judging module 13, and otherwise, triggering the second opening judging module 15;
the first opening degree judging module 13 is used for judging whether the initial opening degree of the accelerator pedal is larger than a first preset value or not, if so, the first adjusting module 14 is triggered, and otherwise, the initial opening degree of the accelerator pedal is kept;
the first adjusting module 14 is used for controlling the initial opening degree of the accelerator pedal to be reduced to a first preset value according to a preset gradient change rate;
the second opening degree judging module 15 is used for judging whether the initial opening degree of the accelerator pedal is larger than a second preset value or not, if so, the second adjusting module 16 is triggered, and otherwise, the initial opening degree of the accelerator pedal is kept;
and the second adjusting module 16 is used for adjusting the opening of the accelerator pedal by taking the zero vehicle speed as a control target until the vehicle speed is reduced to zero.
Preferably, the second regulation module 16 comprises in particular:
the deviation calculation unit is used for calculating the deviation between the target vehicle speed and the current vehicle speed by taking the zero vehicle speed as the target vehicle speed;
and the adjusting unit is used for adjusting the opening of the accelerator pedal according to the deviation and a preset rule.
The invention provides an accelerator pedal opening analysis control device, which comprises the steps of firstly detecting the states of an accelerator pedal and a brake pedal, and if both the accelerator pedal and the brake pedal are stepped, judging whether the current vehicle speed is higher than a preset vehicle speed threshold value; it can be understood that when the vehicle speed is higher, the braking effect generally needs to be enhanced to ensure safety, therefore, after the vehicle speed is higher and the opening degree of the accelerator pedal reaches a first preset value, the opening degree of the accelerator pedal is controlled to be reduced, the acceleration effect is reduced, and the braking effect is indirectly enhanced; when the vehicle speed is low, the vehicle is probably in an uphill state, and in order to prevent backward slip, the opening of the accelerator pedal is adjusted by taking the zero vehicle speed as a control target until the vehicle speed is reduced to zero. Therefore, when the accelerator pedal and the brake pedal are simultaneously stepped on, the method can distinguish the situation as much as possible, which is caused by misoperation under the condition of high-speed emergency braking or active operation during abrupt slope starting, and adopts different control strategies, so that the safety risk of the driver during misoperation is reduced, the control demand of the driver during abrupt slope starting can be met, the safety is high, and the user experience is good.
The invention also provides an accelerator pedal opening analysis control system, which is shown in fig. 3, and fig. 3 is a schematic structural diagram of the accelerator pedal opening analysis control system provided by the invention. The system comprises a vehicle speed calculating device 2, a vehicle control unit 1, a brake pedal 3 and an accelerator pedal 4, wherein the vehicle control unit 1 comprises an accelerator pedal opening analyzing control device as any one of the above devices;
and the vehicle speed calculating device 2 is used for acquiring and calculating vehicle speed signals and sending the calculated vehicle speed information to the vehicle control unit 1.
The vehicle control unit 1 is connected with a brake pedal 3 and an accelerator pedal 4 through hard wires.
The vehicle speed calculation device 2 is connected to the vehicle control unit 1 via a CAN bus.
The above embodiments are only preferred embodiments of the present invention, and the above embodiments can be combined arbitrarily, and the combined embodiments are also within the scope of the present invention. It should be noted that other modifications and variations that may suggest themselves to persons skilled in the art without departing from the spirit and scope of the invention are intended to be included within the scope of the invention as defined by the appended claims.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An accelerator pedal opening degree analysis control method is characterized by comprising the following steps:
step s 1: detecting states of an accelerator pedal, a brake pedal and a gear of an automobile to obtain an initial accelerator pedal opening degree; if the accelerator pedal and the brake pedal are both stepped on and the gear is in a driving gear, entering step s 2; otherwise, go to step s 7;
step s 2: acquiring a current vehicle speed, judging whether the current vehicle speed is higher than a preset vehicle speed threshold value, if so, entering a step s3, otherwise, entering a step s 5;
step s 3: judging whether the initial accelerator pedal opening is larger than a first preset value or not, if so, entering a step s4, otherwise, entering a step s 7;
step s 4: controlling the initial opening degree of the accelerator pedal to be reduced to the first preset value according to a preset gradient change rate;
step s 5: judging whether the initial accelerator pedal opening is larger than a second preset value or not, if so, entering a step s6, otherwise, entering a step s 7;
step s 6: adjusting the opening of an accelerator pedal by taking the zero vehicle speed as a control target until the vehicle speed is reduced to zero;
step s 7: and maintaining the initial accelerator pedal opening.
2. The method according to claim 1, wherein the step of obtaining the initial accelerator pedal opening is specifically as follows:
collecting two paths of voltage signals of the accelerator pedal, and analyzing according to the voltage signals to obtain the initial accelerator pedal opening.
3. Method according to claim 1, characterized in that said process of detecting the state of the brake pedal is embodied as:
and acquiring two high-low switch hard-line signals of the brake pedal, and analyzing according to the switch hard-line signals to obtain the actual state of the brake pedal.
4. The method according to any one of claims 1-3, wherein the adjusting of the accelerator pedal opening with zero vehicle speed as a control target is specifically:
calculating the deviation between the target vehicle speed and the current vehicle speed by taking a zero vehicle speed as the target vehicle speed;
and adjusting the opening of the accelerator pedal according to the deviation and a preset rule.
5. An accelerator pedal opening analyzing control device, comprising:
the system comprises an initial state detection module, a control module and a control module, wherein the initial state detection module is used for detecting the states of an accelerator pedal, a brake pedal and a gear of an automobile and acquiring the initial opening degree of the accelerator pedal; if the accelerator pedal and the brake pedal are both stepped on and the gear is in a driving gear, triggering a vehicle speed judgment module; otherwise, keeping the initial accelerator pedal opening;
the vehicle speed judging module is used for acquiring the current vehicle speed, judging whether the current vehicle speed is higher than a preset vehicle speed threshold value, if so, triggering the first opening judging module, and otherwise, triggering the second opening judging module;
the first opening degree judging module is used for judging whether the initial opening degree of the accelerator pedal is larger than a first preset value or not, if so, a first adjusting module is triggered, and otherwise, the initial opening degree of the accelerator pedal is kept;
the first adjusting module is used for controlling the initial opening degree of the accelerator pedal to be reduced to the first preset value according to a preset gradient change rate;
the second opening degree judging module is used for judging whether the initial accelerator pedal opening degree is larger than a second preset value or not, if so, a second adjusting module is triggered, and otherwise, the initial accelerator pedal opening degree is kept;
and the second adjusting module is used for adjusting the opening of the accelerator pedal by taking the zero vehicle speed as a control target until the vehicle speed is reduced to zero.
6. The device according to claim 5, wherein the second adjusting module specifically comprises:
the deviation calculation unit is used for calculating the deviation between the target vehicle speed and the current vehicle speed by taking the zero vehicle speed as the target vehicle speed;
and the adjusting unit is used for adjusting the opening of the accelerator pedal according to the deviation and a preset rule.
7. An accelerator pedal opening analysis control system is characterized by comprising a vehicle speed calculation device, a vehicle control unit, a brake pedal and an accelerator pedal, wherein the vehicle control unit comprises the accelerator pedal opening analysis control device according to claim 5 or 6;
the vehicle speed calculating device is used for collecting and calculating vehicle speed signals and sending the calculated vehicle speed information to the vehicle control unit.
8. The system of claim 7, wherein the vehicle control unit is connected to the brake pedal and the accelerator pedal by hard wires, respectively.
9. The system of claim 7 wherein the vehicle speed calculating device is coupled to the vehicle control unit via a CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810258268.3A CN108297860B (en) | 2018-03-27 | 2018-03-27 | Accelerator pedal opening degree analysis control method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810258268.3A CN108297860B (en) | 2018-03-27 | 2018-03-27 | Accelerator pedal opening degree analysis control method, device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108297860A CN108297860A (en) | 2018-07-20 |
| CN108297860B true CN108297860B (en) | 2020-01-03 |
Family
ID=62846722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810258268.3A Active CN108297860B (en) | 2018-03-27 | 2018-03-27 | Accelerator pedal opening degree analysis control method, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108297860B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278725B (en) * | 2018-11-21 | 2020-04-17 | 重庆长安新能源汽车科技有限公司 | Method, system, computer readable storage medium and vehicle for vehicle power control |
| CN111284499A (en) * | 2018-12-07 | 2020-06-16 | 宝沃汽车（中国）有限公司 | Vehicle control method and device, controller and vehicle |
| CN110103709B (en) * | 2019-05-20 | 2021-04-23 | 北京易控智驾科技有限公司 | Method, system, equipment and medium for controlling opening degree of vehicle pedal |
| CN111422193B (en) * | 2019-07-01 | 2021-11-26 | 长城汽车股份有限公司 | Brake control method and system and vehicle |
| CN110608874B (en) * | 2019-09-30 | 2021-10-08 | 潍柴动力股份有限公司 | Method and equipment for detecting homing performance of accelerator pedal |
| CN112824125A (en) * | 2019-11-20 | 2021-05-21 | 长城汽车股份有限公司 | Method and device for guiding opening degree of accelerator pedal of vehicle and vehicle |
| CN111731300B (en) * | 2020-06-24 | 2023-03-24 | 韦季李 | Vehicle control method and device and vehicle |
| CN112113777B (en) * | 2020-09-15 | 2022-08-23 | 中国第一汽车股份有限公司 | Slope signal disabling method, slope signal disabling device and vehicle |
| CN112298146B (en) * | 2020-11-02 | 2022-01-25 | 潍柴动力股份有限公司 | Vehicle and braking system and braking control method thereof |
| CN112943468A (en) * | 2021-02-05 | 2021-06-11 | 潍柴动力股份有限公司 | Control method for vehicle rapid acceleration process and vehicle |
| CN112896165B (en) * | 2021-02-23 | 2022-07-22 | 恒大新能源汽车投资控股集团有限公司 | Vehicle control method and device and vehicle |
| CN113147760B (en) * | 2021-05-26 | 2023-04-28 | 江苏盛海智能科技有限公司 | Unmanned constant-speed cruise control method and terminal |
| CN113378299A (en) * | 2021-06-18 | 2021-09-10 | 重庆长安汽车股份有限公司 | Intelligent configuration vehicle virtual pedal calculation method and system and vehicle |
| CN113460024B (en) * | 2021-07-06 | 2022-08-30 | 东风汽车集团股份有限公司 | Automobile brake priority control system and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4740549B2 (en) * | 2004-03-08 | 2011-08-03 | 日産自動車株式会社 | VEHICLE DRIVE OPERATION ASSISTANCE DEVICE AND VEHICLE WITH VEHICLE DRIVE OPERATION ASSISTANCE DEVICE |
| CN103754222A (en) * | 2014-01-03 | 2014-04-30 | 北京智行鸿远汽车技术有限公司 | Method for fulfilling slope starting assist control function of electric automobile |
| CN103974866A (en) * | 2011-12-09 | 2014-08-06 | 丰田自动车株式会社 | Vehicle control device |
-
2018
- 2018-03-27 CN CN201810258268.3A patent/CN108297860B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4740549B2 (en) * | 2004-03-08 | 2011-08-03 | 日産自動車株式会社 | VEHICLE DRIVE OPERATION ASSISTANCE DEVICE AND VEHICLE WITH VEHICLE DRIVE OPERATION ASSISTANCE DEVICE |
| CN103974866A (en) * | 2011-12-09 | 2014-08-06 | 丰田自动车株式会社 | Vehicle control device |
| CN103754222A (en) * | 2014-01-03 | 2014-04-30 | 北京智行鸿远汽车技术有限公司 | Method for fulfilling slope starting assist control function of electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108297860A (en) | 2018-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108297860B (en) | Accelerator pedal opening degree analysis control method, device and system | |
| US8560143B2 (en) | Method and system for adjusting a pedal map | |
| CN109353229B (en) | Pure electric vehicle control method and device | |
| ES2928059T3 (en) | System and method for controlling the starting function in an industrial vehicle with automated transmission | |
| CN110370940B (en) | Steep slope slow-falling constant-speed cruise system and method | |
| CN109703559B (en) | Vehicle speed limit safety control method and device | |
| CN112550275B (en) | Vehicle, parking method thereof, parking device and computer readable storage medium | |
| JP2019194088A (en) | Operation mistake automatic correction device for pedal for automobile travel control | |
| CN111016680B (en) | Slope-stopping control method and system for fuel cell vehicle | |
| JP2014041450A (en) | Driving support device | |
| CN110293971B (en) | Ramp slow descending control method, ramp slow descending control system and vehicle | |
| CN111516687B (en) | Method and device for determining following distance | |
| JP4389767B2 (en) | Vehicle travel control device | |
| CN111664245A (en) | Vehicle gear shifting control method and device, central control device, electronic equipment and medium | |
| JP4608266B2 (en) | Climbing road control method for constant speed vehicles | |
| JP7364072B2 (en) | Vehicle control device | |
| JPH08142819A (en) | Brake hold control device | |
| CN113246724A (en) | Method and device for judging mistaken stepping of accelerator pedal, storage medium and electronic accelerator system | |
| US11639162B2 (en) | Reducing braking torque instead of engine torque to accelerate vehicle during vehicle hill descent control | |
| US11891062B2 (en) | Velocity adjustment system for a vehicle, and method for adjusting a driving velocity | |
| CN108556824B (en) | Automobile braking method, braking device, braking equipment and automobile | |
| US7933708B2 (en) | Systems and methods for assisting in acceleration of a vehicle during vehicle re-acceleration | |
| CN113264046A (en) | Intelligent cruise control method and system for electric two-wheeled vehicle | |
| JP2981950B2 (en) | Drowsy driving detection device | |
| CN114084149A (en) | Speed control method and device for automobile and computer storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |